Wife was having butt-cheek issues on her latest render; so, I decided to see if X&M's perfect booty would work via Gen X.  Have to say it was a 90% successful experiment.  The results aren't quite as nice as when using the morphs with V4; but, they translate over to Genesis pretty well.  Perfect Thighs doesn't work at all though as it only goes into effect on V4 when the thighs are bent in a way that the morph activates.  With a combination of perfect booty for genesis and DieTrying's butt morphs it came out looking pretty darned natural.